Fix permissions for self-host build workflow (#385)

* give write permissions to github release step

* allow running from test branch

* allow running from test branch

* reverse troubleshooting steps

* allow running from test branch

* Update .github/workflows/release.yml

Co-authored-by: Vince Grassia <593223+vgrassia@users.noreply.github.com>

---------

Co-authored-by: Vince Grassia <593223+vgrassia@users.noreply.github.com>

.github/workflows/release.yml

@@ -76,6 +76,8 @@ jobs:
     name: Create GitHub Release
     runs-on: ubuntu-24.04
     needs: setup
+    permissions:
+      contents: write
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -87,7 +89,7 @@ jobs:
         env:
           _LATEST_SELF_HOST_VERSION: ${{ needs.setup.outputs._LATEST_SELF_HOST_VERSION }}
         run: |
-          git diff --unified=0 $_LATEST_SELF_HOST_VERSION main -- version.json >> diff.txt
+          git diff --unified=0 $_LATEST_SELF_HOST_VERSION $GITHUB_REF_NAME -- version.json >> diff.txt
 
           if grep -q "webVersion" diff.txt; then
             echo "WEB_VERSION_CHANGED=true" >> $GITHUB_OUTPUT